ASCII

The table below describes the ASCII codes from 0 to 255 (decimal values). From 0 to 127 are the characters of the original ASCII table, from 128 to 255 are those of the extended ASCII table. All characters of value 256 and above will require a project in Unicode.

The first 32 characters were used at the beginning of computing for data transmissions. This is why no “readable character” is associated with them. Only tabulation, backtracking and carriage return persist from this period.

Special characters are not always available on the keyboard. To access it, either open the program “charmap” Windows or ALT key while making the decimal code preceded by a 0 (ex: ALT+092 gives a “backslash”). It is strongly recommended to always use the 0 because ALT+187 ╗ is not the same as ALT+0187 ».

Several sites offer the conversion of characters to another system (hexadecimal, binary, base64, …). Example ASC(HereOneLetter) to have the decimal value of a character, Charact(HereANumber) to have the character of a decimal value. Both functions work for both ASCII and UNICODE.

For the “web” equivalents, it is necessary to respect the small and capital letters (ex: À (&Agrave;) in upper case and to à (&agrave;) in lower case).